28407964068 has 72 divisors (see below), whose sum is σ = 78357910176. Its totient is φ = 8606188800.

The previous prime is 28407964031. The next prime is 28407964099. The reversal of 28407964068 is 86046970482.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2040780 + ... + 2054652.

It is an arithmetic number, because the mean of its divisors is an integer number (1088304308).

Almost surely, 2^28407964068 is an apocalyptic number.

It is an amenable number.

28407964068 is an abundant number, since it is smaller than the sum of its proper divisors (49949946108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28407964068 is a wasteful number, since it uses less digits than its factorization.

28407964068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19065 (or 19060 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 28407964068 in words is "twenty-eight billion, four hundred seven million, nine hundred sixty-four thousand, sixty-eight".